Craft your day-to-day memories with fun pocket-style page layouts using the We R Memory Keepers 12" x 12" Page Protectors. They have a 1/2" strip along one side that allows your pages to lay flat. They fit all standard 12" x 12" three-ring albums (sold separately). Each pack includes ten 12" x 12" top-loading page protectors which have three 6" x 4" and one 6" x 12" photo sleeves. These premium heavyweight protectors are made of low-glare, ultra-clear polypropylene film, and are acid-free, PVC-free and archival-quality. They were developed for photo storage and scrapbooking, particularly Albums Made Easy (Project Life).